Ad
related to: er diagram with example pictures and description chartnchsoftware.com has been visited by 100K+ users in the past month
- Chart Creator Freeware
Download ClickCharts for PC or Mac
free to create smart charts quickly
- Award-Winning Programs
See our many top awards for
NCH Software downloads.
- Get the Free Version Here
This program has a free version
available for non-commercial use.
- 50 Top Free Downloads
Our best 50 programs to download
for PC and Mac.
- Chart Creator Freeware
Search results
Results from the WOW.Com Content Network
An entity–relationship model (or ER model) describes interrelated things of interest in a specific domain of knowledge. A basic ER model is composed of entity types (which classify the things of interest) and specifies relationships that can exist between entities (instances of those entity types).
An associative entity is a term used in relational and entity–relationship theory. A relational database requires the implementation of a base relation (or base table) to resolve many-to-many relationships. A base relation representing this kind of entity is called, informally, an associative table. An associative entity (using Chen notation)
The enhanced entity–relationship (EER) model (or extended entity–relationship model) in computer science is a high-level or conceptual data model incorporating extensions to the original entity–relationship (ER) model, used in the design of databases.
Entity–relationship modeling is a database modeling method, used to produce a type of conceptual schema or semantic data model of a system, often a relational database, and its requirements in a top-down fashion. Diagrams created by this process are called entity-relationship diagrams, ER diagrams, or ERDs.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Code diagrams (level 4): provide additional details about the design of the architectural elements that can be mapped to code. The C4 model relies at this level on existing notations such as Unified Modelling Language (UML) , Entity Relation Diagrams (ERD) or diagrams generated by Integrated Development Environments (IDE) .
Retrieved from "https://en.wikipedia.org/w/index.php?title=Entity-relationship_diagram&oldid=493930394"
In an online conversation about aging adults, Google's Gemini AI chatbot responded with a threatening message, telling the user to "please die."
Ad
related to: er diagram with example pictures and description chartnchsoftware.com has been visited by 100K+ users in the past month